LAWRENCE DOUGLAS CARLSON M.D.
NPI 1639188972
Internal Medicine - Cardiovascular Disease in Klamath Falls, OR
About Lawrence Douglas Carlson M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LAWRENCE DOUGLAS CARLSON M.D. (NPI 1639188972) is an individual cardiovascular disease provider in Klamath Falls, Oregon, licensed in Oregon (MD209372) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Mercy Medical Center, and maintains a secondary practice location in Torrance.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Lawrence Douglas Carlson M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Lawrence Carlson reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Klamath Falls, OR 97601
- Reassigned Medicare billing, Oregon enrollment
- 355 clinicians in this Medicare group
Roseburg, OR 97471
- Reassigned Medicare billing, Oregon enrollment
- 90 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 6
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercy Medical Center
Acute Care Hospitals · Roseburg, ORPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 97601 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
KLAMATH FALLS, OR 97601
KLAMATH FALLS, OR 97601
KLAMATH FALLS, OR 97601
KLAMATH FALLS, OR 97601
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Lawrence Carlson's NPI number?
The NPI number for Lawrence Carlson is 1639188972. It was assigned to this individual provider in the NPPES registry on August 5, 2006.
Where is Lawrence Carlson located?
Lawrence Carlson practices at 3001 Daggett Ave Ste 101, Klamath Falls, OR 97601. The listed phone number is (541) 884-6233.
What is Lawrence Carlson's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is Lawrence Carlson enrolled in Medicare?
Yes. Lawrence Carlson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Lawrence Carlson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lawrence Carlson reassigns Medicare benefits to 2 organizations: Sky Lakes Medical Center Inc (Klamath Falls, OR) and Centennial Medical Group Inc. (Roseburg, OR). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Lawrence Carlson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Lawrence Carlson accept?
Health plans from Moda Health Plan, Inc. and Providence Health Plan list Lawrence Carlson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Lawrence Carlson affiliated with any hospitals?
According to CMS data, Lawrence Carlson is affiliated with Mercy Medical Center.
When was this NPI record last updated?
The NPPES record for Lawrence Carlson was last updated on November 4, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Lawrence Douglas Carlson, M.D. · NPI 1639188972
Cardiovascular Disease physician in Klamath Falls, Oregon. Individual provider, active in the CMS NPPES registry since August 5, 2006.
## Identity
- **NPI:** 1639188972 (Entity type: Individual)
- **Enumerated:** August 5, 2006
- **Primary specialty:** Internal Medicine - Cardiovascular Disease · taxonomy 207RC0000X
- **State license:** MD209372 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 3001 DAGGETT AVE STE 101, Klamath Falls, OR 97601-1126
- **Phone:** (541) 884-6233 · **Fax:** (541) 880-2840
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Sky Lakes Medical Center Inc (NPI 1659340370, Klamath Falls, OR); Centennial Medical Group Inc. (NPI 1518103274, Roseburg, OR) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Saint Louis University School Of Medicine, class of 1982
## Record status
- **NPPES last updated:** November 4, 2022
- **Other identifiers:** Other 00G629840 (CA); Medicaid 00G629840 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1639188972) · Data from the CMS NPPES public registry.